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What types of equipment do they use?

  OFFICE BUILDINGS
Table 7:  Number and percent of office buildings in each size category by heating, cooling, and lighting equipment types

  Number of Buildings (thousand) Percent of  Buildings
 Small   Medium   Large   Small   Medium   Large 
All Office Buildings 405 261 38 100 100 100
         
Heating Equipment *         
Heat Pumps 86 44 6 21 17 15
Furnaces 169 71 4 42 27 12
Individual Space Heaters 92 46 11 23 17 28
District Heat Q 14 7 Q 5 18
Boilers Q 65 17 Q 25 45
Packaged Heating Units 114 105 11 28 40 28
 
Main Heating Equipment
Heat Pumps 76 42 4 19 16 11
Furnaces 152 51 Q 37 19 Q
Individual Space Heaters Q Q 1 Q Q 3
District Heat Q Q 7 Q Q 18
Boilers Q 55 15 Q 21 39
Packaged Heating Units 112 76 5 28 29 12
 
Cooling Equipment *
Residential-Type Central A/C 123 74 4 30 28 10
Heat Pumps 98 54 7 24 21 19
Individual A/C 55 21 4 14 8 12
District Chilled Water Q Q 3 Q Q 8
Central Chillers Q 12 17 Q 5 44
Packaged A/C Units 147 142 23 36 54 60
Swamp Coolers Q Q 1 Q Q 4
 
Main Cooling Equipment
Residential-Type Central A/C 122 53 Q 30 20 Q
Heat Pumps 91 43 5 22 16 12
Individual A/C Q 11 Q Q 4 Q
District Chilled Water Q Q 3 Q Q 7
Central Chillers N 11 15 N 4 39
Packaged A/C Units 126 124 12 31 48 30
Swamp Coolers Q Q Q Q Q Q
 
Lighting Equipment*
Incandescent 231 159 26 57 61 68
Standard Fluorescent 396 260 38 98 100 100
Compact Fluorescent Q 40 18 Q 15 48
High Intensity Discharge Q 35 11 Q 13 28
Halogen Q 25 10 Q 9 25

* More than one may apply.
Small buildings = 1,001 to 5,000 square feet
Medium buildings = 5,001 to 50,000 square feet
Large buildings = Over 50,000 square feet
Q=Data withheld because the Relative Standard Error (RSE) was greater than 50 percent, or data were reported for fewer than 20 buildings.
N=No cases in responding sample. 

Source:  Energy Information Administration, 
1995 Commercial Buildings Energy Consumption Survey.



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URL: http://www.eia.doe.gov/emeu/consumptionbriefs/cbecs/pbawebsite/office/office_tablesizecatequip.htm

Release date:  September 11, 2000 
File last modified:  January 3, 2001